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AU2564092A - Increasing lift on helicopter rotor blades and airplane propellers - Google Patents

Increasing lift on helicopter rotor blades and airplane propellers

Info

Publication number
AU2564092A
AU2564092A AU25640/92A AU2564092A AU2564092A AU 2564092 A AU2564092 A AU 2564092A AU 25640/92 A AU25640/92 A AU 25640/92A AU 2564092 A AU2564092 A AU 2564092A AU 2564092 A AU2564092 A AU 2564092A
Authority
AU
Australia
Prior art keywords
rotor blades
helicopter rotor
increasing lift
airplane propellers
propellers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU25640/92A
Inventor
John C. Krepak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOHN C KREPAK
Original Assignee
JOHN C KREPAK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JOHN C KREPAK filed Critical JOHN C KREPAK
Priority claimed from PCT/US1992/007437 external-priority patent/WO1994005545A1/en
Publication of AU2564092A publication Critical patent/AU2564092A/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/001—Shrouded propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/08—Helicopters with two or more rotors
    • B64C27/10—Helicopters with two or more rotors arranged coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/20—Rotorcraft characterised by having shrouded rotors, e.g. flying platforms

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Toys (AREA)
AU25640/92A 1991-02-08 1992-09-03 Increasing lift on helicopter rotor blades and airplane propellers Abandoned AU2564092A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/653,499 US5167384A (en) 1991-02-08 1991-02-08 Increasing lift on helicopter rotor blades and aircraft propellers
CA002075752A CA2075752C (en) 1991-02-08 1992-08-12 Increasing lift on helicopter rotor blades and airplane propellers
PCT/US1992/007437 WO1994005545A1 (en) 1991-02-08 1992-09-03 Increasing lift on helicopter rotor blades and airplane propellers

Publications (1)

Publication Number Publication Date
AU2564092A true AU2564092A (en) 1994-03-29

Family

ID=25675420

Family Applications (1)

Application Number Title Priority Date Filing Date
AU25640/92A Abandoned AU2564092A (en) 1991-02-08 1992-09-03 Increasing lift on helicopter rotor blades and airplane propellers

Country Status (3)

Country Link
US (1) US5167384A (en)
AU (1) AU2564092A (en)
CA (1) CA2075752C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6405976B1 (en) 2000-06-20 2002-06-18 Paul Jacoby Counter-rotation disc lift device
US6460802B1 (en) 2000-09-13 2002-10-08 Airscooter Corporation Helicopter propulsion and control system
US6886777B2 (en) * 2001-02-14 2005-05-03 Airscooter Corporation Coaxial helicopter
US7198223B2 (en) * 2001-02-14 2007-04-03 Airscooter Corporation Ultralight coaxial rotor aircraft
AU2003239170A1 (en) * 2002-04-25 2003-11-10 Airscooter Corporation Rotorcraft
US20050108029A1 (en) * 2003-11-18 2005-05-19 Nelson Schneider Method for conducting a home equity sales program
PT2123557E (en) * 2008-05-22 2011-07-20 Agusta Spa Helicopter antitorque tail rotor blade
CN101723087A (en) * 2008-10-11 2010-06-09 李荣德 Multi-group blade propeller

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127093A (en) * 1964-03-31 Ducted sustaining rotor for aircraft
US1056288A (en) * 1911-05-12 1913-03-18 Edward J Salmore Rotary blower.
US2835332A (en) * 1955-10-20 1958-05-20 Vern K Fry Power drive suitable for airplanes and helicopters
US3054578A (en) * 1957-10-08 1962-09-18 Cie De Rech S Et D Etudes Aero Annular aircraft with elastic collector ring rim
US3477168A (en) * 1967-03-20 1969-11-11 James E Trodglen Jr Internal combustion engine powered flying toys
US3677503A (en) * 1968-07-31 1972-07-18 Carlos A Freeman Jr Reaction--impulse--counterrotating--airfoil
US3606209A (en) * 1970-01-26 1971-09-20 Vlm Corp The Turbine drive for rotary wing aircraft
US4913376A (en) * 1988-10-21 1990-04-03 Black Franklin E VTLH autogyro

Also Published As

Publication number Publication date
CA2075752C (en) 1994-10-04
CA2075752A1 (en) 1994-02-13
US5167384A (en) 1992-12-01

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